thanks for joining us. an update in 25 minutes. >>> we are back on this saturday morning, the 18th day of september, 2010. it's a beautiful late summer morning on the plaza. and our thanks to everyone who came out to spend part of their morning with us. back inside studio 1a, i'm amy robach along with lester holt. and coming up, miracle girl. >> a 28-year-old woman, becky hallin, went into cardiac arrest. doctors tried to resuscitate her for over an hour, and just when they thought she was gone the wife and mother of three suddenly responded and was stabilized. coming up we'll meet her, find out how doctors were able to bring her back, and how she's doing today. >> then, here's the ick factor, what lurks from kitchen to cabs to door knobs to computers, every surface apparently a breeding ground for bacteria. so we're going to take a close look to find out what's really lurking in and around your house. apparently the results are going to shock you. you're probably going to want to put your breakfast away fo